DeLisle Stewart discovered IC 5266 = DS 773 on a plate taken on 21 Aug 1900 at Harvard's Arequipa station in Peru. He noted "eF, vS, cE, stell N."

600/800mm - 30" (10/15/15 - OzSky): at 303x; fairly faint to moderately bright, fairly large, edge-on 6:1 SSW-NNE, 1.4'x0.25', weak concentration with a bulging core. In a group with IC 5272 8.4' SE, bright NGC 7417 6.4' NW and PGC 127682 6.1' SSW. A mag 10 star is 5' SSW (on line with PGC 127682). PGC 127682 appeared fairly faint, small, round, 18" diameter. It was easily picked up 1.3' SSW of a mag 10.5 star and 2.1' E of a mag 11.2 star.

Notes by Steve Gottlieb